Automatic stop device for tabulating machines



March 17, 1936. w. w. LASKER AUTOMATIC STOP DEVICE FOR TABULATING MACHINES Filed Feb. 28, 1929 8 Sheets-Sheet l O O O O O INVENTOR Wm BY 01? Q ATTORNEY March 17, 1936 w. w. LASKER AUTOMATIC STOP DEVICE FOR TABULATING MACHINES Filed Feb. 28, 1929 8 Sheets-Sheet 2 INVENTOR %T$ORNEY March 17, 1936. w. w. LAskER AUTOMATIC STOP DEVICE FOR TABULATING MACHINES Filed Feb. 28, 1929 8 Sheets-Sheet 3 1 VENTOR 11"; W 1% BY QM ATTORNEY March 17, 1936. w, w, LASKER AUTOMATIC STOP DEVICE FOR TABULATING MACHINES Filed Feb. 28, 1929 8 Sheets-Sheet 4 INVENTOR WM BY ATTORNEY March 17, 1936. w. w. LAS'KER 2,034,102

AUTOMATIC STOP DEVICE FOR TABULATING MACHINES Filed Feb. 28, 1929,

a Sheets-Sheet 5 llllllil'mnul gs WM I BY ATTORNEY March 17, 1936. w. w. LASKER AUTOMATIC STOP DEVICE FOR TABULA TING MACHINES Filed Feb. 28, 1929 8 Sheets-Sheet 6 INVENTOR Mama BY i; 4.

ATTORNEY March 17, 1936. w. w. LASKER AUTOMATIC STOP DEVIC E FOR TABULATING MACHINES Filed Feb. 28, 1929 8 Sheets-Sheet 7 w wl INVENTOR a ATTORN EY March 17, 1936. w. w. LASKER AUTOMATIC STOP DEVICE'FOR TABULATING MACHINES 8 Sheets-Sheet 8 Filed Feb. 28, 1929 F, w h m w n 5 m e H t. 6 m w ATTORNEY ll-atented Mar. 17, .1936

UNITED STATES PATENT OFFICE William W. Lasker, Brooklyn, N. Y., assignor to Remington Rand Inc., Buffalo, N. Y., a corporation of Delaware Application February 28, 1929, Serial No. 343,411

14 Claims.

This invention relates to improvements in perforated card controlled tabulating machines of the type shown in Letters Patent of the United- States No. 1,245,506, granted to J. Powers, November 6, 1917.

An object of the invention is to provide control mechanism for causing the machine to stop after a predetermined variable number of operations.

Another object is to provide control mechanism for causing the machine to stop after a predetermined variable number of cards have been analyzed.

Another object is to provide control mechanism for causing the machine to stop after a predetermined number of impressions have been made whether of items and totals separately, or of items and totals combined.

Another object is to provide control mechanism which can be readily adjusted to carry out the before-mentioned objects with reference to any number of impressions or cards and which automatically returns to its adjusted position after it has set up a control to cause the machine to stop.

Still another object is to provide manipulative means for causing said control mechanism to return to its adjusted position before it has reached the position in which it effects its control.

Another object is the provision of means operable at will for preventing operation of said control means.

Other objects will appear as the mechanism is described with reference to the accompanying drawings in which,

Fig. l is a right hand elevation of the tabulating machine to which the invention is shown applied,

Fig. 1A is an enlarged view of the adding and printing head shown in Fig. 1,

Fig. 2 is a left hand view of the base of the machine, parts being shown in section,

Fig. 2A is a side View of the picker blade operating cam,

Fig. 3 is a front elevation of the adding and printing head with parts broken away,

Fig. 4 shows in side elevation a part of the printing hammer control mechanism,

Fig. 5 is a right side elevation of the control mechanism as viewed with its cover in section,

Fig. 6 is a sectional view on line 66 of Fig. 5 of parts of the control mechanism showing its connection with the card feeding mechanism of the tabulating machine,

Fig. 7 shows some of the mechanism of Fig. 5 in card feed arresting position,

Fig. 7A is a sectional view on line IA-1A of Fig. 7,

Fig. 8 is a section on line 88 of Fig. 5, and

Fig. 9 shows details of the control mechanism.

Referring to the drawings, Figure 1 shows the right hand side of the machine (the observer being assumed to be in a position to view the adding and printing head from the front).

The machine comprises a base generally indicated at I0, an adding and printing head H, and a frame l2 supporting the adding and printing head on the base. In the base I0 is the main shaft 13 which drives the feeding and analyzing mechanisms later referred to and which through the usual gear mechanism and shaft l4 drives a shaft I5 supporting a disk I6 connected by a link i! to an arm I8 secured to the main shaft iii of the adding and printing head to rock this shaft forward and rearward to perform adding, or adding and printing, or total taking operations as is well understood.

The adding and printing mechanism comprises a plurality of units similar to the well known Dalton adding machines, the mechanism of these units being only generally indicated as they show through the side frame member of the head. The platen 20, adding racks 2|, and type carriers 22, and certain other elements will be referred to later.-

The improvement is housed in a casing 23 secured to the base of the machine as' shown in Figure 1 and is operated from an element in the printing and adding head through a Bowden wire connection 24.

The cards to be analyzed are placed in the supply magazine 25 (Fig. 2) from which they are fed by a picker bladeZB to feed rollers 21 and thence into the registration passage 28 of the analyzing mechanism.

The picker blade 26 is operated by a lever 29 secured to a shaft 353, the lower end ot the lever having a connection with a slidable rod 3 i. This rod is moved to the left due to the action of a cam 32 (Fig. 2A) on the main shaft IS on a roller on the rod, and to the right by a spring 33. Thus while the supply of cards lasts, this mechanism moves a card into feeding relation with the first pair of feed rollers 2i during the latter part of each cycle of rotation of the main shaft 213.

It is possible to arrest the operatimr of machine by three different and separate methods. One is the stopping of the machine when a total has been taken by inserting a total card and 8.

stop card in the pile of cards being analyzed. It

is obvious that in most instances the taking of a total is the final operation in a completed job, such as drawing of a bill, entering an account, or finishing a ledger sheet. It is also obvious that the operator desires the machine stopped in order that the bill-head or ledger sheet be removed and a new one placed in the machine. Where a running total or a series of totals are to be taken, the stop card is not used until the operator desires to stop the machine. In the second case, the machine is automatically stopped when no cards are in the ,bin, or the card feeding mechanism should fail, and the third method of stopping the machine is by a counting mechanism which is set to permit the analyzing of a predetermined number of cards from which will be printed a certain number of items and then a total taken, such as would be desirable when making up a ledger sheet.

The parts of the machine are shown in the stop position in Figure 2 in which the analyzing pin box 34 is in raised position and there is a stop card 35 in the sensing passage. The cams 38 have just raised the analyzing pin box 34 and the analyzing pins 87 and total pin 38, todetermine the amount to be added, or added and printed, on the nextoperation, or to determine the character of operation of the machine.

If the card is an item card, the analyzing pins 3? which find holes in the card will rise and raise pins 39 which through the usual rods (not shown) will set the corresponding pins 40 in the pin carriage of the adding and printing head (Fig. 1), to control the movement of the adding racks 2i and type carriers 22. The total pin 38 during such item entering is held in lowered position so that the link 4! carrying this pin will occupy a position in which the lug 43 is above the lug 42 on the total lever 44 as is more clearly shown in Fig. 2 of Powers Patent No. 1,245,506. The link M is carried by a bell-crank 45 carrying a roller operated by a cam 46. The position of the bell crank is altered just before the cam arrives at the home position shown in Fig. 2. At the end of each operation the cam 46 operates the link 4! which will effect certain controls in all cases except when an item card is in the registration passage.

When a total card is in the sensing passage 28, the restricted movement of the total pin 38, as is well known in the art, will hold the lug 43 in alinement with the lug 42 at the time the cam tit operates the link 44. This willoperate the arm 47 and link 48 (see also Fig. 1 herein, and Fig. 3 of the Powers patent above mentioned) and cause the machine to take a total in the usual manner by rocking the total shaft 49 (Fig. 1).

When a stop card is in the sensing passage 28, the link M will be positioned as shown in Fig. 2 (Fig. 4 of the Powers patent) with the forward end of the rod 58, in line with the end of a bar 5! which is secured to a depending block 52 carried by a sliding rod 53 suitably supported and adapted to be manipulated from a knob 54. The depending block 52 is connected to a lever 55 in operative connection with a spring drawn clutch disengaging slide 56. As the bar 5i and sliding rod the machine and, as all analyzing pins 31 are in their raised positions, a zero registration will be made. This function of the total pin will be referred to later as it is made use of in carrying out this invention in which a stop arm 62 (Figs. 2, 5, 6, 7 and 9) is moved into the path of a lateral lug 63 on an arm 64 fastened to the shaft 38 to which the picker blade operating lever 29 is secured. Thus the stop arm 82 may arrest the movement of the picker blade 26 and cause the absence of a card in the sensing passage 28 which,

in turn, causes the machine to stop, through the control set up by the total pin 38.

As the invention has for its object the stopping of the machine after a certain number of item,

' total, or combined item and total impressions have been made, it is sufiicient to illustrate and describe only such portions of the adding and printing head as relate to the printing. The head usually comprises several adding and printing units but for illustrative purposes only one of these unitsis shown. A

In Figs. 3 and 4 are illustrated the type carriers 22 of one unit. After the type carriers have been positioned, the type members ill at the printing line of the platen 20 areaetuated by hammers l l. The hammers ll operate upon release of hooks 12 which are moved out of engagement with shoulders 73 on the hammers H under control of movement of the type carriers (as shown and described in detail in Letters Patent of the U. S. to W. W. Lasker No. 1,253,696, granted Jaanuary 15, 1918).

As is customary; means is provided for optionally preventing the printing of items. This means (frequently hereinafter called non-print means) consists of bails l4 (Figs. 3 and 4) which are adjustable on a shaft 75 and ated by a lateral portion 78 on a link 80, Link 80' which when in the position shown in Fig. 4 arrest the hammers is pivoted on an arm 8| on the total shaft 49. It

may now be seen that rocking movement of the total lever i i '(Fig. 2) lowers the link 48 and rocks the total shaft 49 counterclockwise (Fig. 4), thereby rocking the shaft 75 and bails 14 counterclockwise and enabling the hammers H to print totals even when the bails 16 are adjusted to prevent the printing of items, that is, to the position shown in Fig. 4.

The bails 14 may also be adjusted to their ineffective positions by a push button 82 (Fig. 4), which operates on the lever 18 and is provided with the usual'pin 83 and catch 84 to hold it in operated position.

The movement of the shaft 15 to permit the hammers to operate is communicated by an arm 85 (Fig. 1A), to a link 86 which actuates a slide 81 provided with a lateral flange 88 which during non-printing is in the path of a shoulder 89 on a bell-crank to which one end of a slide 9| is connected. When the push button 82 is set for printing or when a total is taken, the shaft I5 is rocked to lower the flange 88 out of the path of the shoulder 89 to permit the bell-crank 90 to be operated.

As shown in Fig. 1A the bell crank 90 is operated counterclockwise on the return stroke of the main shaft I9 of the adding and printing head. This operation is effected by the co-operation of arm 92 on shaft I9 with pin 94 on the horizontal arm of bell crank 90. Return of bell crank 90 to normal position is assured by the spring which acts through levers 96 and 91.

The slide BI is connected to the bell crank 90 and serves to operate wire 98 whenever an impression is taken whether of items or totals. The machine is arrested whenever the arm 62 (Figs. 2, 5, 6, 7 and 9) is moved into the path of thelug 63 on the arm 64 in a manner hereinafter explained.

The mechanism for controlling the movement of thearin 62 isshown in Figs. 5 to 9. This mechanism is housed within the casing 23 which comprises a cover plate I00 Figs. 5, 6 and 8 secured .by screws MI and I02 to spacer studs I03 and I04 Figs. 5 and 9 projecting from a rear plate I05 and by a screw I06 secured to an ear I01 on said rear plate I05. The rear.plate I05 is of the configuration shown in Fig. 9 and is secured to the base I0 of the machine by a pair of screws I08 extending through an offset portion I09 of the plate and by a pair of screws IIO extending through an ofiset plate II I secured to the rear of the plate I05. The screws IIO are accessible through holes H2 in the plate I05.

The stud I 03 is apertured to receive the housing I I3 of the wire 98, said housing and wire together constituting the connection 24; and the housing H3 is secured in the stud by screw H4. The other end of the housing is similarly secured to a block II5 secured to a stud I I6 on which the slide 9| operates. 'The wire 98 is secured to the slide 9| by a screw III having a threaded connection with a hollow transversely apertured stud carried by the slide 9 I.

The control mechanism includes a ratchet disk I20 (Figs. 5, 6, 7 and 8). The disk I20 is provided with a hub I2I rotatably mounted on a stud I22 on the rear plate I05. The disk is urged counterclockwise Figs. 5 and 7 by a clock spring I23 Fig. 9 anchored to the hub I2I and to a pin I24 projecting from the rear plate I05. The disk is moved step by step in a clockwise direction during each printing operation by the wire 98 of the Bowden wire connection, actuating a lever I25 pivoted on a stud on the rear of the plate I05 and carrying an actuating pawl I26 on stud I21 co-.

operating with the ratchet disk I20. The lever I25 carries a stud on which the wire 98 is retained by a screw I28. The disk I20 carries a pin I30 (Fig. 7) which is positioned to cooperate with a radial arm I3I on a toothed disk I32. Thus when the disk I20 reaches a predetermined position it moves arm I3I clockwise. When this movement occurs, arm I3I strikes a lateral flange I 33 formed on the arm I34, which is pivoted on stud I35 fixed to rear plate I05. Also pivoted on the stud I35 is arm 62, and the arrangement of arms I34 and 62 is such that, when arm I34 is restored to normal position by the action of spring I36, it raises arm 62 with it. Moreover, arms I34 and 62 are connected by a spring I3'I which causes .62 to follow I34, and to thus move into the path of lug 63, when arm I3I is moved clockwise as described above. It will thus be clear that as the wire 98 operates the pawl I 26 and disk I20, the pin I30 will be moved toward the arm I3I and then will move this arm which in turn will place the arm 62in the path of the lug 63. The parts are so arranged and proportioned that interception of the lug 63 and consequently the stopping of picker blade 26 occurs just before the picker blade has moved far enough to the left in Fig. 2 to let a card drop in front of the feeding shoulder I38 on the picker blade. This cessation of feeding leaves thepin box empty and in the subsequent analyzing movement of the analyzing pin box 34, the total pin 38 will cause the machine to stop. The movement of the arm I34 may be limited by a stud I90 secured to plate I05 entering a slot I! in the arm as shown in Figure 9.

When arm I 3I is actuated flange I33 is moved to the left of its normal position and its cam surface I39 engages a cam surface I40 (Fig. 5) on an arm I 4| pivoted on a stud I42 on the rear plate I 05. This arm has a pin and slot connection I43, I44 with the actuating pawl I26 which permits the pawl to be reciprocated while at the same time holding it in engaged position under the influence of a spring I 45 which is connected to a stud I 46 on the arm and to a stud M1 on the rear plate I05. A roller on the stud I46 supports the pawl I26 as it is being reciprocated. As the cam surface I40 is engaged by the flange I33 the arm I is lowered and releases'the pawl I26 from the action of the spring. As the pawl I26 is returned to the right (Fig. '7), it engages the cam surface I39 on the flange I33 and is depressed thereby out of engagement with the teeth of the ratchet disk I20.

As the flange I33 and its associated arm I34 is moved to the left by the rotation of arm I3I from the position shown in Fig. 5 to that shown in Figs. 7 and 9, a cam surface thereof engages a portion I5I of a retaining pawl I52 pivoted on a stud I42 and spring pulled into engagement with the ratchet disk I20 by a spring I53. Upon movement of the flange I 33, both pawls I26 and I52 will be disengaged and the disk I20 will be permitted to return to its starting position.

The flange I33, arm 62 and pawls I26 and I52 are held in their inoperative position until the disk I20 has returned to its selected position, by a pawl I54 pivoted on the stud I42. This pawl is spring pressed by a spring I55 against a stud I56 on the arm I3I. When the arm I3I is in its normal position (Fig. 5) the stud I56 engages a recess I51 (Fig. 7) in the pawl I54 and in its moved position it engages a cam surface I58 on the pawl I54 as shown in Fig. 7. The front edge of the arm I3I engages the flange I33 and holds the parts in inoperative position.

When the stud I30 (Fig. 5) reaches its selected position as the disk I20 is rotated counter-clockwise by its spring I23, it engages a ratchet pawl I60 pivoted on an index drum I6I and spring pressed into engagement with the ratchet disk I32 by a spring I62. This engagement moves disk I32 to the left (Fig. 7), carrying the arm I3I counter-clockwise thereby raising pawl I54 through engagement of the stud I56 with the cam surface I58 thus removing the end of this pawl from the flange I33 permitting the arm 62 and pawls I26 and I52 to return to the position shown in Fig. 5.

The index drum I6I is provided with numerals and spaces cooperating with a pointer I63 for reading the position of the drum NH. The drum is mounted on a sleeve I64 on the stud I22 which extends outside of the cover plate I00. The

pointer I63 is a laterally turned end of a lever I66 loosely mounted on a sleeve I64 rotatably mounted on the sleeve I64. The lower end of the lever I66 is provided with a hollow stud re-' ceiving the end of stud I56 on the arm I3I.

The index drum, I6I may readily be adjusted by means of the knob I65 secured to the sleeve I64. Secured to a flange on the sleeve I64 is a link I68 (Fig. 7A) which engages a pin I61 on the hub of the index drum I6 I and a pin I60 on the ratchet from the disk I32 and thereby free the index drum I6I, and upon continued movement the link I68 1 moves the index drum I6I counter-clockwise to 25 the desired position.

As shown in Figs. and 6, the drum I6I is adjusted to count 50 cards. If, however, the drum had been adjusted to count 10 cards the pawl I60 and associated arm I68 would be positioned approximately opposite pawl I52.

The pawls I 26 and I52 may be disengaged by pressing a key lever I10 (Fig. 5) pivoted to a bracket I1I on the cover plate I00 and spring pressed upwardly by a spring I12. The key is provided with an extension I13 to engage a flange I14 on a bar I 15 slidable on a stud I16 on the rear plate I05 and the stud I42, and spring pressed upwardly by a spring I11. Pressure on the key lowers the bar I15 which is provided with a flange I80 to engage an ear I8I on the arm I and a flange I82 to engage a flange I83 on the pawl I52. The engagement of flange I80 with car I 8| rotates arm I4I counter-clockwise and disengages pawl I36. The engagement of flange I82 with ear I83 rotates pawl I52 clockwise, thereby causing its disengagement and permits the disk I20 to return to its selected-starting position.

I By means of an L-shaped lever I 85 adapted to operate on the flange I14, the bar I15 may be lowered and'locked down and operation of the control mechanism prevented.

Operation The index drum I 6I is adjusted to locate the number corresponding to the desired number of cards to be analyzed opposite the-indicator by movement of the kiob I65 in either direction as required. If the pin I on the ratchet disk I20 is not in contact with the pawl I60, the key I10 may be depressed to release the feeding and retaining pawls I26 and I52 whereupon the spring I23 will rotate the ratchet disk I20 counter-clockwise.

If it is desired to stop the machine after ten item impressions the index drum is adjusted to I 0 and the push button 82 is pushed in and latched to cause impressions to be made and to enable the pawl I26 to be operated by the slide 9|. During the tenth operation of the pawl I26, the pin. I30 moves the arm I3I from the position shown in Fig. 5 to that shown in Fig. 7. This positions the arm 62 in the path of arm 63 to disable the picker blade and cause the machine to stop due to the absence of a card in the sensing passage, and releases the ratchet disk I20 which is now returned by its spring. The parts are held in their moved positions during the return of the ratchet disk by the pawl I54 blocking the return movement of lug I33 on arm I34. As the pin I30 contacts with pawl I60 it drives the disk I32 and arm I3I counter-clockwise to earn out the pawl I54 and permit the feeding and retaining pawls I26 and I52 and the-arm 62 to return to the position shown in Figure 5.

If the machine is to stop after ten item impressions and the total impression, the index drum will be set to 12 as the actuating pawl I26 will operate during the usual idle stroke preceding the total stroke and in the total stroke.

If the machine is to stop after ten total impressions the index drum is set to 10 and the push button 82 is pulled out to prevent impressions of items. Totals are printed automatically during a total operation independently of any control 'set up by the push button 82.

If it is found desirable to print more items than the index drum is set for, before the machine comes to rest, the ratchet disk I20 can be j released by the key I10 to return to its starting point.

The control device may be entirely disabled by the lever I85 which throws out the actuating and retaining pawls I26 and I52 without afiecting the position of the arm 62.

What I claim as new and desire to secure by Letters Patent, is:

1. In a machine of the class described, the combination of a card supply magazine, a tabulating mechanism comprising analyzing mechanism and adding and printing mechanisms, means for feeding the cards from the supply magazine to the analyzing mechanism, means for controlling the machine to print totals, and means automatically operable for interrupting the feeding of cards after any predetermined number of total impressions have been made by said printing mechanism.

2. In a machine of the class described, the combination of a card supply magazine, a tabulating mechanism comprising analyzing mechanism and adding and printing mechanisms, means for feeding the cards from the supply magazine to the analyzing mechanism, means for setting the machine to print items, means for automatically printing totals, and means automatically operable for interrupting the feeding of cards after any predetermined number of item and total impressions have been made by said printing mechanism.

3. In a machine of the class described, the combination of card analyzing mechanism and printing mechanism, means for automatically printing totals, means for stopping the machine, and means controlled by the printing mechanism for causing said stopping means to function after the printing of any predetermined number of totals.

4. In a machine of the class described, the combination of card feeding means, means for interrupting the feeding after any predetermined ,number of cards have been fed, and means operable as a result of and after such interruption of said feeding means for stopping the machine.

5. In a machine of the class described, tabulating mechanism for printing and adding amounts, and means for arresting the machine after a predetermined number of amounts have been printed, said means comprising a ratchet disk having a. limited amount of movement, an index drum adjustable with respect to said disk, :1.

pointer on said disk cooperating with said drum, a radial arm on said disk, a second ratchet disk, a pawl for actuating said second disk by increments, a limiting ratchet pawl on said drum cooperating with said first mentioned disk, a pin on said second disk adapted to abut said pawl to limit the return movement of said second disk, and a radial arm on said first disk against which said pin is moved to limit the forward movement of said second disk. i

6. In a machine of the class described, tabulating mechanism for printing and adding amounts, and means for arresting the machine after a predetermined number of amounts have been printed, said means comprising a ratchet disk having a limited amount of movement, an index drum adjustable with respect to said disk, a pointer on said disk cooperating with said drum, a radial arm on said disk, a second ratchet disk, a pawl for actuating said second disk by increments, a limiting ratchet pawl on said drum operating with said first mentioned disk, a pin on said second disk adapted to abut said pawl to limit the return movement of said second disk, a radial arm on said first disk against which said pin is moved to limit the forward movement of said second disk, and means operated by said radial arm for disabling said pawl for moving said second disk.

'7. In a machine of the class described, tabulating mechanism for printing and adding amounts, and means for arresting the machine after a predetermined number of amounts have been printed, said means comprising a ratchet disk having a limited amount of movement, an index drum adjustable with respect to said disk, a pointer on said disk cooperating with said drum, a radial armon said disk, a second ratchet disk,

' a pawl for actuating said second disk by increments, a limiting ratchet pawl on said drum cooperating with said first mentioned disk, a pin on said second disk adapted to abut said pawl to limit the return movement of said second disk, a radial arm on said first disk against which said pin is moved to limit the forward movement 0! said second disk, a retaining pawl for said second disk, and means operated by said arm for disabling said actuating and retaining pawls.

8. In a machine of the class described, tabulating mechanism for printing and adding amounts, and means for arresting the machine after a predetermined. number of amounts have been printed, said means comprising a ratchet disk having a limited amount of movement, an index drum adjustable with respect to said'disk, a pointer on said disk cooperating with said drum, a radial arm on said disk, a second ratchet disk, a pawl for actuating said second disk by increments, a limiting ratchet pawl on said drum cooperating with said first mentioned disk, a pin on said second disk adapted to abut said pawl to limit the return movement of said second disk, a, radial arm on said first disk against which said pin is moved to limit the forward movement of said second disk, a retaining pawl for said second disk, means operated by said arm for disabling said actuating and retaining pawls, and means for retaining said arm in moved position.

9. In a machine of the class described, tabulating mechanism for printing and adding amounts, and means for arresting the machine after a predetermined number of amounts have been printed, said means comprising a ratchet disk having a limited amount of movement, an

index drum adjustable with respect to said disk, a pointer on said disk cooperating with said drum, a radial arm on said disk, a second ratchet disk, a pawl for actuating said second disk by increments, a limiting ratchet pawl on said drum cooperating with said first mentioned disk, a pin on said second disk adapted to abut said pawl to limit the return movement of said second disk, a radial arm on said first disk against which said pin is moved to limit the forward movement of said second disk, a retaining pawl for said second disk, means operated by said arm for disabling said actuating and retaining pawls, means for retaining said arm in moved position, and means on said arm and its retaining means for releasing said arm as said arm is moved by engagement of said pin with said limiting ratchet pawl.

10. In a machine of the class described, tabulating mechanism for printing and adding amounts, and means for arresting the machine after a predetermined number of, amounts have been printed, said means comprising a ratchet disk having a limited amount of movement, an index drum adjustable with respect to said disk, a pointer on said disk cooperating with said drum, a radial arm on said disk, a second ratchet disk, a pawl for actuating said second disk by increments, a limiting ratchet pawl on said drum cooperating with said firstmentioned disk, a pin on said second disk adapted to abut said pawl to limit the return movement of said second disk, a radial arm on said first disk against which said pin is moved to limit the forward movement of said second disk, a control member positioned by said arm as the arm is moved during the last step of movement of said second disk, a retaining pawl for said second disk, and means operated by said control member for releasing said actuating and retaining pawls.

11. In a machine of the-class described, a movable blocking member adapted to cause the machine to stop, a control member therefor operable after any predetermined number of operations of the machine to move said blocking member into functioning position, actuating and retaining pawls for said control member, means operable as the control member is moved into blocking position for withdrawing said actuating and retaining pawls, spring means for returning said control member, means for maintaining said block in functioning position and said pawls withdrawn as said control member returns to its starting-point, and means operated by said control member as it reaches its starting point for actuating said maintaining means to release said block and pawls.

12. In a machine of the class described, the combination of a printing mechanism, a card picker, means for blocking the movement of the picker during its movement to a position in which it can pick up a card, and means comprising a settable element and an actuable element, means for moving said actuable element one step upon each operation of the printing mechanism, and means carried by said settable element operable by said actuable element during its final step 01 movement for moving said blocking means into functioning position.

, 13. In a machine of the class described, the combination of card analyzing mechanism and adding and printing mechanism, means for controlling the printing and non-printing of items, means for automatically printing totals irrespective of the setting of said controlling means, means for stopping the machine, and means controlled by the printing mechanism for bringing said stoppingmeans into action after a predetermined number of printing operations.

14. In a machine of the class described, a tabulating mechanism including a card feeding means, a counting means controlling a mechanism for disabling said feeding means after any predetermined number 01 cards have been fed, and a card sensing device including a series of sensing pins/one of said pins being adapted to control means for stopping the machine when said card feeding means is disabled.

W. LASKER. 

